1// Copyright (c) 2012 The Chromium Authors. All rights reserved. 2// Use of this source code is governed by a BSD-style license that can be 3// found in the LICENSE file. 4 5#include "chrome/browser/icon_loader.h" 6 7#include "base/basictypes.h" 8#include "base/bind.h" 9#include "content/public/browser/browser_thread.h" 10 11using content::BrowserThread; 12 13IconLoader::IconLoader(const base::FilePath& file_path, 14 IconSize size, 15 Delegate* delegate) 16 : target_message_loop_(NULL), 17 file_path_(file_path), 18 icon_size_(size), 19 delegate_(delegate) {} 20 21IconLoader::~IconLoader() { 22} 23 24void IconLoader::Start() { 25 target_message_loop_ = base::MessageLoopProxy::current(); 26 27 BrowserThread::PostTaskAndReply(BrowserThread::FILE, FROM_HERE, 28 base::Bind(&IconLoader::ReadGroup, this), 29 base::Bind(&IconLoader::OnReadGroup, this)); 30} 31 32void IconLoader::ReadGroup() { 33 group_ = ReadGroupIDFromFilepath(file_path_); 34} 35 36void IconLoader::OnReadGroup() { 37 if (IsIconMutableFromFilepath(file_path_) || 38 !delegate_->OnGroupLoaded(this, group_)) { 39 BrowserThread::PostTask(ReadIconThreadID(), FROM_HERE, 40 base::Bind(&IconLoader::ReadIcon, this)); 41 } 42} 43 44void IconLoader::NotifyDelegate() { 45 // If the delegate takes ownership of the Image, release it from the scoped 46 // pointer. 47 if (delegate_->OnImageLoaded(this, image_.get(), group_)) 48 ignore_result(image_.release()); // Can't ignore return value. 49} 50